CHAPTER XXI.
Of another very similar Vision of great brilliancy.

ANOTHER night also, one of the brothers, whose name was Colga, the son of Aid Draigniche, of the grandsons of Fechrech mentioned in the first Book, came by chance, while the other brothers were asleep, to the gate of the church, and stood there for some time praying. Then suddenly he saw the whole church filled with a heavenly light, which more quickly than he could tell, flashed like lightning from his gaze. He did not know that St. Columba was praying at that time in the church, and after this sudden appearance of light, he returned home in great alarm. On the following day the saint called him aside and rebuked him severely, saying: "Take care of one thing, my child, that you do not attempt to spy out and pry too closely into the nature of that heavenly light which was not granted thee, but rather fled from thee, and that thou do not tell any one during my lifetime what thou hast seen."